Real-Life Proportions: Check Your Answers!

A recipe calls for 2 cups of flour for every 3 cups of sugar. If you want to use 6 cups of sugar, how many cups of flour do you need? Check if your answer is reasonable.

• 6 cups of flour

• 3 cups of flour

• 2 cups of flour

• 4 cups of flour

A car travels 150 miles on 5 gallons of gas. How many miles can it travel on 8 gallons of gas? Verify if your answer makes sense.

• 200 miles

• 300 miles

• 180 miles

• 240 miles

In a school, the ratio of boys to girls is 4:5. If there are 20 boys, how many girls are there? Check if your answer is reasonable.

• 15

• 30

• 20

• 25

A map shows that 1 inch represents 10 miles. If two cities are 3 inches apart on the map, how far apart are they in real life? Check your answer for reasonableness.

• 30 miles

• 20 miles

• 15 miles

• 25 miles

A painter can paint 3 rooms in 2 days. How many rooms can he paint in 5 days? Is your answer reasonable?

• 8 rooms

• 10 rooms

• 7 rooms

• 5 rooms

If 5 apples cost $2.50, how much would 8 apples cost? Check if your answer is reasonable based on the cost per apple.

• $2.00

• $5.00

• $4.00

• $3.50

A recipe requires 4 eggs for 12 cookies. How many eggs are needed for 30 cookies? Verify if your answer is reasonable.

• 8 eggs

• 6 eggs

• 10 eggs

• 12 eggs

In a class, the ratio of students who like math to those who like science is 3:2. If there are 15 students who like math, how many like science? Check your answer for reasonableness.

• 20

• 12

• 5

• 10

A car can travel 240 miles on 8 gallons of gas. How many gallons of gas will it need to travel 360 miles? Check if your answer is reasonable.

• 12 gallons

• 8 gallons

• 15 gallons

• 10 gallons

If a 12-ounce bottle of soda costs $1.20, how much would a 20-ounce bottle cost? Check your answer for reasonableness.

• $1.80

• $1.50

• $2.50

• $2.00